Hi,
In jena rules, when i say noValue(?a ?b ?c), it checks triple if there is no value then rule infer new triple.
How can we implement this in oracle rules? In oracle rules, I know the primitives can only be use in the filter part of the rule not in the head. But i don't know how to implement noValue primitive in oracle rules. Thanks for your help.

Thanks Zhe,
I can use your suggestion or i will try to use in-memory jena reasoner.
Do you have future plans to add such capability to the user-defined rules?
I have another question for you. Do you have a list of all available built-in functions can be used in the filter section of the user-defined rules?